GPON ONU Home Gateway Reference Design
A 4-layer reference board (190 × 120 mm) based on a real KiCad layout and routing: 1 PON optical port, 4 Gigabit Ethernet ports, 1 POTS phone port, USB 2.0 and M.2 WiFi, with a single 12V supply input. Each position is marked with the VOOHU parts available and recommended part numbers.
Illustrative PCB ⇄ Schematic
Illustrative top-side view arranged by functional zone (not the actual layout). Red numbered dots mark positions VOOHU can supply. Click a component on the board, an entry in the index below or a chain node to see recommended parts and package pinouts on the right.
Board bill of materials
Summarized by position; click any row to locate it on the board above.
| No. | Zone | Position | Ref. | VOOHU category | Recommended part | Availability |
|---|---|---|---|---|---|---|
| 01 | A PON optical port | SFP cage + 20pin host connector | J1 | SFP Cage / SFP Connectors | WHSFP00211W018 | VOOHU |
| 02 | A PON optical port | SFP supply filter inductor | L10 L11 | Molded Inductors | WHYTA0420 Series 4.7µH | VOOHU |
| 03 | B Ethernet ports | RJ45 with integrated magnetics (LAN1/2) | J2 | RJ45 with Integrated Magnetics | SYT112Q066AB2A1D | VOOHU |
| 04 | B Ethernet ports | Plain RJ45 (LAN3/4) | J3 | RJ45 Connectors | SYT561288AB2A3DY1027 | VOOHU |
| 05 | B Ethernet ports | Gigabit LAN transformer (LAN3) | T1 | Gigabit LAN Transformers | WHSG24002G | VOOHU |
| 06 | B Ethernet ports | Chip LAN transformers ×4 (LAN4) | T2 T3 T4 T5 | 4532B Series | WHLT-4532B-201MGF | VOOHU |
| 07 | B Ethernet ports | Chip LAN companion common-mode chokes ×4 | L1 L2 L3 L4 | 2012A Series | WHLC-2012A-900T0 | VOOHU |
| 08 | B Ethernet ports | Ethernet ESD arrays ×6 | D1 D2 D3 D4 D5 D6 | TVS / ESD | WHALD03G4U | VOOHU |
| 09 | C Switch / PHY | 5-port Gigabit switch IC | U2 | Ethernet Switch ICs | JL6107S | VOOHU |
| 10 | C Switch / PHY | Gigabit PHY | U3 | Ethernet PHY | JL2101C-NC | VOOHU |
| 11 | C Switch / PHY | On-chip regulator inductor | L9 L13 | Molded Inductors | WHYTA0420 Series 2.2µH | VOOHU |
| 12 | C Switch / PHY | 25MHz crystal | Y1 Y2 | — | — | Non-VOOHU |
| 13 | D Voice · USB · WiFi | RJ11 phone port | J4 | RJ11 Connectors | SYT53211166IWA1DY1017 | VOOHU |
| 14 | D Voice · USB · WiFi | Gas discharge tubes (primary surge protection) | GDT1 GDT2 | GDT | WHGD200V1P0B | VOOHU |
| 15 | D Voice · USB · WiFi | Bidirectional TVS (secondary clamp) | D8 | TVS / ESD | WHTB058VA | VOOHU |
| 16 | D Voice · USB · WiFi | FXS/SLIC daughter card socket | J8 | — | 2×8 2.54mm female header | Non-VOOHU |
| 17 | D Voice · USB · WiFi | USB 2.0 A receptacle | J5 | USB / Type-C | WH127272040004H4G | VOOHU |
| 18 | D Voice · USB · WiFi | USB ESD array | D7 | TVS / ESD | WHTA5V01P2C | VOOHU |
| 19 | D Voice · USB · WiFi | USB signal line common-mode choke | L5 | Signal Line CMC | WHAC-2012A-900T0 | VOOHU |
| 20 | D Voice · USB · WiFi | M.2 WiFi socket | J9 | — | 2199230-4 | Non-VOOHU |
| 21 | E Power | DC 12V power jack | J6 | — | PJ-063AH | Non-VOOHU |
| 22 | E Power | Input TVS | D10 | — | SMBJ18A | Non-VOOHU |
| 23 | E Power | Power line common-mode choke (EMI) | L6 | Power Line CMC | WHACM07A40R701 | VOOHU |
| 24 | E Power | Synchronous buck ×3 | U10 U11 U12 | — | TPS54302DDCR | Non-VOOHU |
| 25 | E Power | Molded inductors ×3 (DC-DC) | L7 L8 L12 | Molded Inductors | WHYT0630 Series 4.7µH | VOOHU |
| 26 | F Core board | GPON core board sockets A/B | J10 J11 | — | 2×40 2.54mm female header | Non-VOOHU |
Resources & downloads
Board bill of materials
Reference designators, zones, VOOHU categories, recommended parts and availability for all 26 positions. Opens directly in Excel.
Datasheet collection
Datasheet PDFs for the VOOHU parts recommended on this board.
3D interactive board
Rotate the real layout and copper layers, and highlight signal and power nets. Built for in-depth engineering review.
Coming soonDesign files & footprint library
Schematic, PCB, and VOOHU part footprints and 3D models.
Coming soonRequest the ONU reference design full package
Includes the full-board BOM, datasheets for the recommended VOOHU parts and position-by-position selection notes. For selection advice tailored to your port configuration, please say so in your requirements.
